v0.5.0

Summary

This version of fhEVM includes several key enhancements to improve the overall security and efficiency in handling encrypted data within the system:

• New input mechanism: Simplify and streamline data entry
• Access Control List (ACL): Manage ciphertext permissions more effectively
• Updated reencryption process: Use an off-chain service to improve security and efficiency

What's Changed

Breaking Changes

• Deprecate TFHE.reencrypt and TFHE.decrypt. Refer to our documentation about asynchronous decryption and off-chain reencryption to update your code
• TFHE.asXXX needs a second argument to validate a user input. Read about this change in our documentation about [input mechanism]((https://docs.zama.ai/fhevm/fundamentals/inputs)
• Permissions are explicit using TFHE.allow and TFHE.allowTransient. Look at our documentation regarding Access Control List to update your code

New features

• Add TFHE.allow and TFHE.allowTransient to explicitly allow a ciphertext
• All encrypted inputs are packed in one single ciphertext, limiting size of transactions

Improvements

• Asynchronous decryption allows for the decryption of ciphertexts of different types in a single call

Resources

• Documentation:
  • Inputs
  • Access control list
  • Decryption and Reencryption

Full Changelog: v0.4.1...v0.5.0